> Markdown version of [/jobs/ext/2190741-mobile-engineer-ii-android](https://www.wearedevelopers.com/jobs/ext/2190741-mobile-engineer-ii-android). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mobile Engineer II, Android - **Company:** Expedia, Inc. - **Location:** London, UK - **Salary:** £64,336.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Agile Methodology, Artificial Intelligence, Android Software Development, Android Studio, Code Review, Continuous Delivery, Continuous Integration, Software Debugging, Software Design Patterns, Gradle, Mobile Application Software, Machine Learning, Performance Tuning, Productivity Software, Software Construction, Software Engineering, Strategies of Testing, Backend, Kotlin, Material UI, Integration Tests, Information Technology, Jetpack Compose, Asynchronous Programming, Software Version Control, Microservices - **Published:** August 23, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5852585715 ## About the Role * Bachelor's degree in Computer Science, Engineering, or a related technical field, or equivalent practical experience in professional software development. * Experience building and shipping Android applications using Kotlin in a production environment, including ownership of features or services within a larger mobile application. * Proven ability to design and implement mobile low-level designs, APIs, and data models, and to work effectively with service-oriented or microservices-based backends. * Demonstrated proficiency with core Android development tools and practices, including version control, testing frameworks, debugging, performance optimization, and continuous integration/continuous delivery pipelines. Preferred Qualifications: * Experience using Jetpack libraries and modern Android tooling (e.g., Jetpack Compose, Coroutines/Flows, Android Studio, Gradle) to build scalable, testable architectures. * Awareness of performance and reliability considerations on mobile (app start, scrolling performance, memory, battery) and experience using profiling/monitoring tools to diagnose and fix issues. * Comfortable defining and implementing test strategies (unit, UI, snapshot, and integration tests) * Awareness of accessibility and inclusive design basics on Android (e.g., Talkback, touch targets, contrast) and a desire to improve the accessibility of native experiences. * Experience working in cross functional Agile teams, collaborating with Product, Design, and other engineers, and communicating clearly about progress, risks, and trade-offs. * Familiarity with AI driven systems, tools, or workflows and applying AI/ML concepts to real world products, including thoughtful use of AI powered coding and productivity tools ## Description * Build, enhance, and maintain Android applications using Kotlin, applying solid understanding of Android platform capabilities, UI components, and mobile design patterns to deliver high-quality customer experiences across Expedia Group brands. * Design and implement clean, testable, and maintainable low-level designs (LLD), APIs, and data models for mobile features that integrate reliably with backend services and shared platforms. * Apply software engineering best practices in coding, testing (including unit and UI tests), code reviews, and continuous integration to ensure high reliability, performance, and security of Android applications. * Collaborate with product managers, designers, and other engineers across teams to break down requirements, refine technical solutions, and deliver features iteratively while maintaining a strong customer focus. * Safely integrate and operate AI/ML-enabled solutions that improve outcomes, including personalization, recommendations, or automated insights, while ensuring responsible use of data and adherence to privacy and security standards. * Demonstrate familiarity with AI-driven systems, tools, or workflows and applying AI/ML concepts to real world products, and adapt your Android engineering skills to work across multiple domains, services, or shared mobile components as needed. ## Related Videos - [Modular Secrets to Lightning-Fast Android Builds](https://www.wearedevelopers.com/videos/1428-modular-secrets-to-lightning-fast-android-builds) - [For the Cars and the Curious: Android Drift](https://www.wearedevelopers.com/videos/499-for-the-cars-and-the-curious-android-drift) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse) - [Moving from Java to Kotlin](https://www.wearedevelopers.com/videos/384-moving-from-java-to-kotlin) - [Introducing Kotlin Multiplatform in an existing project](https://www.wearedevelopers.com/videos/276-introducing-kotlin-multiplatform-in-an-existing-project) ## Related Articles - [A Guide to Choosing the Right Tools for App Developers](https://www.wearedevelopers.com/magazine/391-a-guide-to-choosing-the-right-tools-for-app-developers) - [Cross Platform Mobile Development Frameworks to Use in 2025](https://www.wearedevelopers.com/magazine/404-cross-platform-mobile-development-frameworks-to-use-in-2025) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)